Add priority to protected branch (#32286)

## Solves

Currently for rules to re-order them you have to alter the creation
date. so you basicly have to delete and recreate them in the right
order. This is more than just inconvinient ...

## Solution

Add a new col for prioritization

## Demo WebUI Video

https://github.com/user-attachments/assets/92182a31-9705-4ac5-b6e3-9bb74108cbd1


---
*Sponsored by Kithara Software GmbH*

services/convert/convert.go

@@ -158,6 +158,7 @@ func ToBranchProtection(ctx context.Context, bp *git_model.ProtectedBranch, repo
 	return &api.BranchProtection{
 		BranchName:                    branchName,
 		RuleName:                      bp.RuleName,
+		Priority:                      bp.Priority,
 		EnablePush:                    bp.CanPush,
 		EnablePushWhitelist:           bp.EnableWhitelist,
 		PushWhitelistUsernames:        pushWhitelistUsernames,